I posted a feature request for this here:
But I thought perhaps someone would have a tip for configuring this.
I'd really like a way to cycle through intellisense completions without having to move my right hand to the up/down arrows. If I type part of a variable name and Ctrl-space to complete it, I should then be able to go to the next completion by hitting Tab and previous by hitting Shift-Tab. Alternatively, I'd be happy with Ctrl-J/Ctrl-K or Ctrl-N/Ctrl-P or better yet, make it configurable. This would be a big time saver.